63188871897 has 8 divisors (see below), whose sum is σ = 85509319456. Its totient is φ = 41497169472.

The previous prime is 63188871869. The next prime is 63188871937. The reversal of 63188871897 is 79817888136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63188871897 - 2¹⁸ = 63188609753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63188871857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157186048 + ... + 157186449.

It is an arithmetic number, because the mean of its divisors is an integer number (10688664932).

Almost surely, 2^63188871897 is an apocalyptic number.

63188871897 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

63188871897 is a deficient number, since it is larger than the sum of its proper divisors (22320447559).

63188871897 is a wasteful number, since it uses less digits than its factorization.

63188871897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314372567.

The product of its digits is 32514048, while the sum is 66.

The spelling of 63188871897 in words is "sixty-three billion, one hundred eighty-eight million, eight hundred seventy-one thousand, eight hundred ninety-seven".